## S3 – Using Electricity Test (Credit)

We’ve almost completed the Electronics unit. You might want to see how you are doing by clicking on the link below and downloading the booklet. The booklet contains statements you can tick off to record your progress and has extra homework questions at the back to test you further.

Electronics booklet

## S3 – Welcome to the Telecommunications unit.

We started work on the Telecommunications unit last week. If you want to check your progress you can use the link below to download a summary booklet on Telecommunications. The booklet contains learning statements for you to tick off as you work through the course, along with extra homework questions to test how much you have learned.

Telecommunications booklet

## S3 – Alternative Summary Notes

I’ve uploaded a set of summary notes that you might find useful as you prepare for the end of unit tests on Using Electricity. Download the pdf file using the link below.

Summary Notes

## moon jigsaw

I forgot to say that the moonsaic project starts tomorrow. Get yourself a smart poster for your bedroom wall – and it’s free!

## S3 – making an electric motor

I was going to show you all this youtube video on how to make your own electric motor home but the school was closed due to bad weather. I also found this diagram showing the parts of a dc motor.

## S3 – movement from electricity

Last week we looked at using electricity to get things moving. We looked at examples of an electric bell and the movement of a current-carrying bar of copper in a magnetic field. We’ll be taking an electric motor apart this week to see how it works but in the meantime, here is a link to an animation of an electric buzzer (same idea as the electric bell).

If you want to read someone else’s explanation of how an electric motor works, you could go here or here. There are animations of a dc electric motor here and here (this is the example I used in class).

## almost there!

We have almost completed the Using Electricity unit. We will start looking at magnetism tomorrow as an introduction to movement from electricity. The closer we get to the end of a unit, the nearer we are to test time.

You might want to download a copy of this electricity revision booklet to help you check how well you understand the topics we have covered. It also contains some useful revision questions in the homework section.

## last chance to hand in homework

I won’t mark any homework on useful circuits handed in after today.

## ring circuits

I found a decent image of a ring ciruit on wikipedia.Â  The pageÂ about ring circuits is not badÂ but those of you with a liking for diy might prefer the practical advice on ring circuits available from homebase.